DM74AS1804N

Revised March 2000 DM74AS1804 Hex 2-Input NAND Driver General Description Features These devices contain six independent 2-Input drivers each of which performs the logic NAND function. The DM74AS1804 is equivalent to the DM74AS804B but the supply voltage and ground pins are centered in the package. This positioning of the supply voltage and ground pins reduce the lead inductance of these pins. This reduction of lead inductance will minimize noise generated onto either the supply voltage or ground bus which is significant in high current switching applications. ■ Switching specifications at 50 pF ■ Switching specifications guaranteed over full temperature and VCC range ■ Advanced oxide-isolated, ion-implanted Schottky TTL process ■ Centered VCC and GND configuration provides minimum lead inductance for high current switching applications ■ High capacitive drive capability Ordering Code: Order Number Package Number DM74AS1804WM M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide Package Description DM74AS1804N N20A 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Connection Diagram Function Table Y= A*B INPUTS A OUTPUT B Y L L H L H H H L H H H L H = HIGH Logic Level L = LOW Logic Level © 2000 Fairchild Semiconductor Corporation DS008619 www.fairchildsemi.com DM74AS1804 Hex 2-Input NAND Driver July 1985 DM74AS1804 Absolute Maximum Ratings(Note 1) Supply Voltage 7V Input Voltage 7V 0°C to +70°C Operating Free Air Temperature Note 1: The “Absolute Maximum Ratings” are those values beyond which the safety of the device can not be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum ratings. The “Recommended Operating Conditions” table will define the conditions for actual device operation. −65°C to +150°C Storage Temperature Range Typical θJA N Package 58.3°C/W M Package 154.0°C/W Recommended Operating Conditions Symbol Parameter Min Nom Max 4.5 5 5.5 Units VCC Supply Voltage VIH HIGH Level Input Voltage V VIL LOW Level Input Voltage 0.8 V IOH HIGH Level Output Current −48 mA IOL LOW Level Output Current 48 mA TA Operating Free Air Temperature Range 70 °C 2 V 0 Electrical Characteristics over recommended operating free air temperature range Symbol Parameter Conditions VIK Input Clamp Voltage VCC = 4.5V, II = −18 mA VOH HIGH Level IOH = −2 mA, VCC = 4.5V to 5.5V Output Voltage IOH = −3 mA, VCC = 4.5V IOH = Max, VCC = 4.5V Min Typ Max Units −1.2 V VCC −2 2.4 3.2 V 2 VOL LOW Level Output Voltage VCC = 4.5V, IOL = Max, VIH = 2V 0.5 V II Input Current at Maximum Input Voltage VCC = 5.5V, VI = 7V 100 µA IIH HIGH Level Input Current VCC = 5.5V, VI = 2.7V 20 µA IIL LOW Level Input Current VCC = 5.5V, VI = 0.4V −500 µA IO Output Drive Current VCC = 5.5V, VO = 2.25V −200 mA ICCH Supply Current with Outputs HIGH VCC = 5.5V 3.5 5 mA ICCL Supply Current with Outputs LOW VCC = 5.5V 16 27 mA −50 −135 Switching Characteristics over recommended operating free air temperature range Symbol tPLH tPHL Parameter Conditions Propagation Delay Time VCC = 4.5V to 5.5V LOW-to-HIGH Level Output RL = 500Ω Propagation Delay Time CL = 50 pF HIGH-to-LOW Level Output www.fairchildsemi.com 2 Min Max Units 1 4 ns 1 4 ns DM74AS1804 Physical Dimensions inches (millimeters) unless otherwise noted 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide Package Number M20B 3 www.fairchildsemi.com DM74AS1804 Hex 2-Input NAND Driver Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Package Number N20A Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. www.fairchildsemi.com www.fairchildsemi.com 4